Silo.



A. 0. HUBBARD.

SILO.

APPLICATION FILED SEPT. 5, 1911.

Patented June 25, 1912.

narran strains natanti* ernten.

ARTHUR O. HUBBARD, 0F MINNEAPOLIS, MINNESOTA.

SILO.

Specification of Letters Patent.

To all whom t may concern `Be it known that I, ARTHUR O. HUBnARn, ofMinneapolis, Hennepin county, Minnesota, have invented certain new anduseful Improvements in Silos, of which the following is a specification.

My invention relates to that type of silos in which the walls arecomposed of upright panels and bars arranged vertically at the jointsbetween the abutting panels.

The object of the invention is to provide means for securing togetherthe abutting ends of the sections composing the bars to the end that theerection of the silo may be facilitated.

A further object is to provide a coupling device which. will be simpleand economical in construction and will hold the sections rigidly inalinement with one another.

The invention consists generally in vari,-

ous constructions and combinations, all as hereinafter described andparticularly pointed out in the claims. ln the vaccompanying drawingsforming part of this specification, Figure l is an outside view of thelower port-ion of a silo with myinvention applied thereto, Fig. 2 is asectional view showing the meeting edges of the abutting panels and thebar provided at the joint between the panels. Fig. 3 is a front view ofthe coupling means between the bar sections Fig. Ll is 'a side Viewillustrating the abutting ends of vertically arranged bars with thecoupling bridging the joints between said ends, the coupling being shownpartially in section to illustrate the locking keys.

In the drawing, 2 represents the panels of which the silo is composed.

3 is a section of the upright rails or bars provided at the jointsbetween the vertical edges of the abutting panels. This section haspreferably an inwardly projecting flange 4, laterally extending flanges5 and an outwardly projecting flange (3. WVhen the sections are placed.end to end in alinement with one another they ltorni a continuousbarextending from the bottom to tlie top of the silo, the sections beingadded on as the silo is built. To unite or couple toV gether theabutting ends vof .the sections,I l provide a rail 7 consistingpreferably of a looped or middle p'mtion, substantially U-shaped incross section, adapted to t onto theflange-G of the abutting rail...ctions and having outwardly turned edges 8 which (it snugly against theflanges 5. Slots 9 are provided inthe looped portion 7 and in the flange.6 to receive locking keys 10 which are driven therein and have theirends outwardly turned to prevent them from slipping out of the slots.The abutting sections are thus securely held together and as thePatented June 25, i912.

Application led September 5, 1911. Serial No. 647,653.

edges 8 have broad bearing surfaces onthe flanges 5 the coupling will bevery rigid and will hold the sections as securely as though the barswere formed in one piece. l'. also prefer to provide a recess 11 in theloop 7 to receive a hoop l2 and form a seat therefor. rlhe bars are madeof a suitable Weight of metal and the coupling rails are preferablystamped or pressed out of metal of suitable gage and formed tofit-snugly on` the flanges (3 and against the outer faces of the flanges5.

The details of' the construction may be varied without departing from,my invention.

Vl claim as my invention 1. The combinati-ion, with the upright silopanels having abutting vertical-edges, of vertically arranged metal barscomposed of sections placed end to end7 one above another, saidbars-comprising outwardly pro# jecting flanges and side flanges adaptedto bear on the panels of the silo, rail plates seated on said outwardlyprojecting flanges and having their edges bearing on said side flangesand bridgii'ig the joints between the abutting sections of said bars,and tongues passing through said plates and outwardly projecting flangesand locking said sections in vertical alinelnent. j

2. A silo composed of upright panels having vertical abutting edges,metal bars provided at the joints between abutting panels, saidbarsbeing composed of sections placed end to end and having outwardlyprojecting flanges and side flanges adapted to bear on the' walls' ofsaid panels, coupling rails bent to tit over said outwardly projectingflanges and having edges'that are seated upon said side flanges, saidrails bridging the joints between the sections of said bars, hoopsinclosing the silo and seated on said rails,v and means for securingsaid rails to the outwardly projecting flanges of said bars.

3. lln a silo, upright, metal bars provided at. the joints between thevertical sections of -the silo 4said bars tions placed end to end, eachsection being provided with, laterally projecting flanges adapted tobear on the outer surfaces of the silo sect-ions, said sections alsohaving on the Walls of the silo and also having outwardly project-ingflanges, mils bridging the joints between the abutting' sections, and llocking keys passing through slots in said rails and Said outwardlyprojecting lianges. ln Witness whereof, I have hereunto set my hand this29th day of Aug., 1911.

ARTHUR 0. HUBBARD. 1Witnesses: f'

E. S. HAWIHNS, M. A. HAWKINS.

